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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/tracing/arc_value_event.h"
#include "chrome/browser/ash/arc/tracing/arc_value_event_trimmer.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace arc {
using ArcValueEventTest = testing::Test;
using Type = ArcValueEvent::Type;
TEST_F(ArcValueEventTest, Trimmer) {
ValueEvents events;
{
ArcValueEventTrimmer trimmer(&events, ArcValueEvent::Type::kMemUsed);
trimmer.MaybeAdd(100 /* timestamp */, 1 /* value */);
ASSERT_EQ(1U, events.size());
EXPECT_EQ(ArcValueEvent(100, ArcValueEvent::Type::kMemUsed, 1), events[0]);
trimmer.MaybeAdd(101, 2);
ASSERT_EQ(2U, events.size());
EXPECT_EQ(ArcValueEvent(101, ArcValueEvent::Type::kMemUsed, 2), events[1]);
trimmer.MaybeAdd(102, 2);
EXPECT_EQ(2U, events.size());
trimmer.MaybeAdd(103, 2);
EXPECT_EQ(2U, events.size());
trimmer.MaybeAdd(104, 2);
EXPECT_EQ(2U, events.size());
trimmer.MaybeAdd(105, 1);
ASSERT_EQ(4U, events.size());
EXPECT_EQ(ArcValueEvent(104, ArcValueEvent::Type::kMemUsed, 2), events[2]);
EXPECT_EQ(ArcValueEvent(105, ArcValueEvent::Type::kMemUsed, 1), events[3]);
trimmer.MaybeAdd(106, 2);
ASSERT_EQ(5U, events.size());
EXPECT_EQ(ArcValueEvent(106, ArcValueEvent::Type::kMemUsed, 2), events[4]);
trimmer.MaybeAdd(107, 2);
EXPECT_EQ(5U, events.size());
}
// Check auto-close, last trimmed is added.
ASSERT_EQ(6U, events.size());
EXPECT_EQ(ArcValueEvent(107, ArcValueEvent::Type::kMemUsed, 2), events[5]);
}
TEST_F(ArcValueEventTest, TrimmerResetConstant) {
ValueEvents events;
{
ArcValueEventTrimmer trimmer(&events, ArcValueEvent::Type::kMemUsed);
trimmer.MaybeAdd(100 /* timestamp */, 0 /* value */);
trimmer.MaybeAdd(200 /* timestamp */, 0 /* value */);
EXPECT_EQ(1U, events.size());
trimmer.ResetIfConstant(1 /* value */);
EXPECT_EQ(1U, events.size());
trimmer.ResetIfConstant(0 /* value */);
EXPECT_TRUE(events.empty());
}
// Flush does not change latest state.
EXPECT_TRUE(events.empty());
}
TEST_F(ArcValueEventTest, Serialize) {
const ValueEvents events{
{100 /* timestamp */, ArcValueEvent::Type::kMemTotal, 10 /* value */},
{101 /* timestamp */, ArcValueEvent::Type::kMemUsed, 20 /* value */},
{102 /* timestamp */, ArcValueEvent::Type::kSwapRead, 30 /* value */},
{103 /* timestamp */, ArcValueEvent::Type::kSwapWrite, 40 /* value */},
{104 /* timestamp */, ArcValueEvent::Type::kSwapWait, 50 /* value */}};
const base::Value value = base::Value(SerializeValueEvents(events));
ValueEvents loaded_events;
EXPECT_TRUE(LoadValueEvents(&value, &loaded_events));
EXPECT_EQ(events, loaded_events);
}
} // namespace arc
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